Common name: Aron's blenny

Scientific name: Ecsenius aroni Springer, 1971
An Aron's Blenny (Ecsenius aroni) in the Red Sea, Egypt

General information

Aron's Blenny, scientifically known as Ecsenius aroni, is a captivating and relatively rare species in the aquarium trade. This small, elongated fish is part of the Blenniidae family and is known for its distinctive coloration and behavior. It has a striking appearance with a combination of blue to purple hues on its body, accented by orange to red stripes along its sides. The species is named after the ichthyologist Dr. Aron W. Ebeling, who contributed significantly to the study of blennies.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy Adapts well to aquarium life
Diet
Herbivore Prefers algae-based foods
Social
Solo Territorial, best kept alone
Reefsafe
Yes
Aggression
Peaceful May be territorial with conspecifics
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Blennies
    Blenniidae
  6. Genus
    Blennies
    Ecsenius
  7. Species
    Aron's blenny
    Ecsenius aroni Springer, 1971

Care

Aron's Blenny is a hardy species that adapts well to life in captivity, provided its environment is well-maintained. They thrive in tanks with plenty of live rock and crevices for hiding and grazing on microalgae. These blennies are herbivores and require a diet rich in marine algae and vegetable matter. Supplementing their diet with prepared foods like spirulina flakes and algae sheets will help maintain their vibrant coloration and health.

Reproduction

In the wild, Ecsenius aroni exhibits secretive breeding behavior, with little known about their reproductive habits. In captivity, breeding success is rare, and there is limited information on their breeding patterns. However, like many blennies, they are likely to be demersal spawners, laying eggs in hidden locations.

Habitat

Aron's Blenny is endemic to the Red Sea. It prefers shallow, coral-rich environments and is often found in close association with Acropora coral colonies. Their natural habitat includes reef slopes and lagoons, where they can be seen darting in and out of the coral branches, usually at depths of less than 20 meters.